How long will it take a skydiver to fall 1000 at terminal velocity?

Answer 1

Terminal velocity, if you are flat toward the ground is about 180 feet per second; so time is distance/speed = 1000 feet/180 = 5.5 seconds. If you roll up like a ball terminal velocity may be as high as 280 feet per second. and time would be about 3.5 seconds.

Answer 2

The answer will depends on the units used for 1000. It should be blindingly obvious to anybody that the time taken for 1000 micrometres will be significantly less than that for 1000 metres!